/*
 * Copyright 2021-2022 Maksim Zheravin
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package exchange.core2.raftification.messages;

import exchange.core2.raftification.RsmResponseFactory;

import java.nio.ByteBuffer;

public record CustomResponse<S extends RsmResponse>(S rsmResponse,
                                                    int leaderNodeId,
                                                    boolean success) implements RpcResponse {

    @Override
    public int getMessageType() {
        return RESPONSE_CUSTOM;
    }

    @Override
    public void serialize(ByteBuffer buffer) {
        buffer.putInt(leaderNodeId);
        buffer.putInt(success ? 1 : 0);
        rsmResponse.serialize(buffer);
    }

    public static <S extends RsmResponse> CustomResponse<S> create(ByteBuffer buffer, RsmResponseFactory<S> factory) {

        final int leaderNodeId = buffer.getInt();
        final boolean success = buffer.getInt() == 1;
        final S rsmResponse = factory.createResponse(buffer);

        if (rsmResponse == null) {
            throw new IllegalStateException("RsmResponse can not be null");
        }

        return new CustomResponse<>(rsmResponse, leaderNodeId, success);
    }

}
